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Date: Tue, 19 Oct 2004 10:34:59 +0200 (CEST)
From: "O. Hartmann" <hartmann@mail.uni-mainz.de>
Reply-To: "O. Hartmann" <hartmann@edda.physik.uni-mainz.de>
To: FreeBSD-gnats-submit@freebsd.org
Cc:
Subject: ALTQ code and queues seem to trigger crashes in FBSD 5.3-RC1
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>Number:         72866
>Category:       kern
>Synopsis:       ALTQ code and queues seem to trigger crashes in FBSD 5.3-RC1
>Confidential:   no
>Severity:       serious
>Priority:       high
>Responsible:    pf
>State:          closed
>Quarter:        
>Keywords:       
>Date-Required:  
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Tue Oct 19 08:40:31 GMT 2004
>Closed-Date:    Fri Feb 18 17:41:20 GMT 2005
>Last-Modified:  Fri Feb 18 17:41:20 GMT 2005
>Originator:     O. Hartmann
>Release:        FreeBSD 5.3-RC1 i386
>Organization:
Department of Geophysics, Johannes Gutenberg-Universitaet Mainz
>Environment:
System: FreeBSD edda.physik.uni-mainz.de 5.3-RC1 FreeBSD 5.3-RC1 #26: Sun Oct 17 10:48:55 UTC 2004 root@edda.physik.uni-mainz.de:/usr/obj/usr/src/sys/EDDA i386


	Mainboard: ASUS CUR-DLS, SMP, 1GB RAM, SCSI (no ATA). Kernel config like GENERIC with some
	extensions: using pf, ALTQ, SMP, PIM, MROUTING, disabled driver which I do not need
	or use. Utilizing onboard fxp0 NIC or em0 NIC (64Bit PCI, Intel GBit Server NIC).
>Description:
	Applying queues to network connections with /etc/pf.conf via 'altq' pushes the
	likelyhood of crashes enormously! I recognized this on fxp0 and em0. Disabling
	bandwith limiting in pf-config leaves the system more stable.

>How-To-Repeat:
	Configure pf and ALTQ, use queues in /etc/pf.conf (maybe SMP should also be
	used, but SMP triggers the problem more quickly).
>Fix:

	Disable queues in pf.conf.


>Release-Note:
>Audit-Trail:
State-Changed-From-To: open->feedback 
State-Changed-By: linimon 
State-Changed-When: Mon Nov 29 08:51:41 GMT 2004 
State-Changed-Why:  
Is this the same machine as in kern/74156?  If so, does this particular 
problem still recur with the problematic video card removed? 

http://www.freebsd.org/cgi/query-pr.cgi?pr=72866 
Responsible-Changed-From-To: freebsd-bugs->mlaier 
Responsible-Changed-By: rwatson 
Responsible-Changed-When: Mon Jan 3 18:45:47 GMT 2005 
Responsible-Changed-Why:  
Chown to Max Laier. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=72866 

From: Max Laier <max@love2party.net>
To: freebsd-gnats-submit@freebsd.org,
	hartmann@edda.physik.uni-mainz.de
Cc:  
Subject: Re: kern/72866: ALTQ code and queues seem to trigger crashes in FBSD 5.3-RC1
Date: Tue, 4 Jan 2005 01:50:26 +0100

 In order to debug this, I need more information:
 
 1) What kind of "crash" is this? panic, deadlock or something else? If it is a 
 panic, do you have a chance to get a crashdump or at least a traceback?
 
 2) I need your *complete* pf.conf (in private mail if you prefer). Please send 
 both versions.
 
 3) Does setting debug.mpsafenet=0 in loader.conf change the situation?
 
 -- 
 /"\  Best regards,                      | mlaier@freebsd.org
 \ /  Max Laier                          | ICQ #67774661
  X   http://pf4freebsd.love2party.net/  | mlaier@EFnet
 / \  ASCII Ribbon Campaign              | Against HTML Mail and News
Responsible-Changed-From-To: mlaier->pf 
Responsible-Changed-By: mlaier 
Responsible-Changed-When: Fri Feb 18 16:18:58 GMT 2005 
Responsible-Changed-Why:  
No feedback from original reporter in a while.  Over to freebsd-pf ML to 
see if somebody else has seen similar problems and can fill in details. 

Thanks. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=72866 
State-Changed-From-To: feedback->closed 
State-Changed-By: mlaier 
State-Changed-When: Fri Feb 18 17:40:29 GMT 2005 
State-Changed-Why:  
Original author confirmed that the problem was due to bad hardware.  Thanks. 

http://www.freebsd.org/cgi/query-pr.cgi?pr=72866 
>Unformatted:
